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  2. Cold filter plugging point - Wikipedia

    en.wikipedia.org/wiki/Cold_filter_plugging_point

    Cold filter plugging point (CFPP) is the lowest temperature, expressed in degrees Celsius (°C), at which a given volume of diesel type of fuel still passes through a standardized filtration device in a specified time when cooled under certain conditions. This test gives an estimate for the lowest temperature that a fuel will give trouble free ...

  3. Winter diesel fuel - Wikipedia

    en.wikipedia.org/wiki/Winter_diesel_fuel

    In North America, gas stations offer two types of diesel fuel – according to ASTM D975 [5] these are named No. 1 and No. 2 fuel. No. 1 fuel (similar to kerosene) has a natural CFPP of -40 °C but it is more expensive than No. 2 fuel. Adding No. 1 fuel will lower the CFPP of No. 2 fuel – adding 10% will lower the CFPP temperature by about 5 ...

  4. Glow plug - Wikipedia

    en.wikipedia.org/wiki/Glow_plug

    Glowplugs are typically used as starting-aid devices, when the engine is being cranked by a starter motor, and in most cases switched off when the engine has reached a defined minimum operating temperature. Diesel engines, unlike common spark-ignition engines, do not use spark plugs to ignite the air-fuel mixture. Instead, they rely solely on ...

  5. Diesel engine - Wikipedia

    en.wikipedia.org/wiki/Diesel_engine

    1952 Shell Oil film showing the development of the diesel engine from 1877. The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is called a compression-ignition engine (CI engine).

  6. Flash point - Wikipedia

    en.wikipedia.org/wiki/Flash_point

    A diesel-fueled engine has no ignition source (such as the spark plugs in a gasoline engine), so diesel fuel can have a high flash point, but must have a low autoignition temperature. Jet fuel flash points also vary with the composition of the fuel. Both Jet A and Jet A-1 have flash points between 38 and 66 °C (100 and 151 °F), close to that ...

  7. Cylinder Head Temperature gauge - Wikipedia

    en.wikipedia.org/wiki/Cylinder_Head_Temperature...

    The ring under the spark plug is used to transfer the heat from the plug to the thermocouple. The gauge and cold junction are usually calibrated at room temperature, 72 °F (22 °C). Because the thermocouple is calibrated for room temperature, the gauge readings will only be 100% accurate at that engine compartment temperature.

  8. Diesel cycle - Wikipedia

    en.wikipedia.org/wiki/Diesel_cycle

    The Diesel cycle is a combustion process of a reciprocating internal combustion engine. In it, fuel is ignited by heat generated during the compression of air in the combustion chamber, into which fuel is then injected. This is in contrast to igniting the fuel-air mixture with a spark plug as in the Otto cycle (four-stroke/petrol) engine.

  9. Cloud point - Wikipedia

    en.wikipedia.org/wiki/Cloud_point

    When the temperature is below 0 °C, the dew point is called the frost point, as water vapour undergoes gas-solid phase transition called deposition, solidification, or freezing. In the petroleum industry, cloud point refers to the temperature below which paraffin wax in diesel or biowax in biodiesels forms a cloudy appearance.